diff options
Diffstat (limited to 'drivers/gpu/drm/msm/hdmi/hdmi.h')
| -rw-r--r-- | drivers/gpu/drm/msm/hdmi/hdmi.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h new file mode 100644 index 000000000000..2c2ec566394c --- /dev/null +++ b/drivers/gpu/drm/msm/hdmi/hdmi.h @@ -0,0 +1,131 @@ +/* + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __HDMI_CONNECTOR_H__ +#define __HDMI_CONNECTOR_H__ + +#include <linux/i2c.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> + +#include "msm_drv.h" +#include "hdmi.xml.h" + + +struct hdmi_phy; + +struct hdmi { + struct kref refcount; + + struct drm_device *dev; + struct platform_device *pdev; + + void __iomem *mmio; + + struct regulator *mvs; /* HDMI_5V */ + struct regulator *mpp0; /* External 5V */ + + struct clk *clk; + struct clk *m_pclk; + struct clk *s_pclk; + + struct hdmi_phy *phy; + struct i2c_adapter *i2c; + struct drm_connector *connector; + struct drm_bridge *bridge; + + /* the encoder we are hooked to (outside of hdmi block) */ + struct drm_encoder *encoder; + + bool hdmi_mode; /* are we in hdmi mode? */ + + int irq; +}; + +/* platform config data (ie. from DT, or pdata) */ +struct hdmi_platform_config { + struct hdmi_phy *(*phy_init)(struct hdmi *hdmi); + int ddc_clk_gpio, ddc_data_gpio, hpd_gpio, pmic_gpio; +}; + +void hdmi_set_mode(struct hdmi *hdmi, bool power_on); +void hdmi_destroy(struct kref *kref); + +static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data) +{ + msm_writel(data, hdmi->mmio + reg); +} + +static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg) +{ + return msm_readl(hdmi->mmio + reg); +} + +static inline struct hdmi * hdmi_reference(struct hdmi *hdmi) +{ + kref_get(&hdmi->refcount); + return hdmi; +} + +static inline void hdmi_unreference(struct hdmi *hdmi) +{ + kref_put(&hdmi->refcount, hdmi_destroy); +} + +/* + * The phy appears to be different, for example between 8960 and 8x60, + * so split the phy related functions out and load the correct one at + * runtime: + */ + +struct hdmi_phy_funcs { + void (*destroy)(struct hdmi_phy *phy); + void (*reset)(struct hdmi_phy *phy); + void (*powerup)(struct hdmi_phy *phy, unsigned long int pixclock); + void (*powerdown)(struct hdmi_phy *phy); +}; + +struct hdmi_phy { + const struct hdmi_phy_funcs *funcs; +}; + +struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi); +struct hdmi_phy *hdmi_phy_8x60_init(struct hdmi *hdmi); + +/* + * hdmi bridge: + */ + +struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi); + +/* + * hdmi connector: + */ + +void hdmi_connector_irq(struct drm_connector *connector); +struct drm_connector *hdmi_connector_init(struct hdmi *hdmi); + +/* + * i2c adapter for ddc: + */ + +void hdmi_i2c_irq(struct i2c_adapter *i2c); +void hdmi_i2c_destroy(struct i2c_adapter *i2c); +struct i2c_adapter *hdmi_i2c_init(struct hdmi *hdmi); + +#endif /* __HDMI_CONNECTOR_H__ */ |